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The trench has been formed by the actions of the Romanche Fracture Zone, a portion of which is an active transform boundary offsetting sections of the Mid-Atlantic Ridge. [ 1 ] It was named after the French navy ship La Romanche , commanded by captain Louis-Ferdinand Martial which on 11 October 1883 made soundings that revealed the trench.
Blanco fracture zone map Bathymetry map of the North Atlantic Ocean showing the full extent of the Charlie-Gibbs fracture zone (horizontal black lines in the center of the image) Magnetostratigraphy of the East Pacific Rise near the Heirtzler fracture zone showing ages of sea floor spreading in millions of years (Ma) The Romanche fracture zone with red arrows indicating directions of movements ...
A map of the Juan de Fuca plate Age of ocean floor, with fracture zones in the north Pacific Ocean. Hawaii-Emperor seamount chain in black. (some are inactive) [6] Challenger fracture zone; Austral fracture zone [6] Marquesas fracture zone [6] Galapagos fracture zone [6]
Near the equator, the Mid-Atlantic Ridge is divided into the North Atlantic Ridge and the South Atlantic Ridge by the Romanche Trench, a narrow submarine trench with a maximum depth of 7,758 m (25,453 ft), one of the deepest locations of the Atlantic Ocean. This trench, however, is not regarded as the boundary between the North and South ...
Japan Trench: Pacific Ocean 9,000 29,527 5.59 8 Puerto Rico Trench: Atlantic Ocean 8,605 28,232 5.35 9 Yap Trench: Pacific Ocean 8,527 27,976 5.30 10 Richards Deep: Peru–Chile Trench, Pacific Ocean 8,065 26,456 5.01 11 Diamantina Deep: Diamantina fracture zone, Indian Ocean: 8,047 26,401 5.00 12 Romanche Trench: Atlantic Ocean 7,760 25,460 4. ...
Romanche Trench; S. South Sandwich Trench; T. Tongue of the Ocean This page was last edited on 19 August 2017, at 04:07 (UTC). Text is available under the Creative ...
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The majority of trench maps were to a scale of 1:10,000 or 1:20,000, although trench maps also frequently appeared on a scale of 1:5,000 (maps printed on a large scale such as 1:5,000, were generally meant for use in assaults). In addition, the British army also printed maps on scales smaller than 1:20,000, such as 1:40,000 and 1:100,000, but ...